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目的:探讨脑梗死(CI)患者颅内和颈部动脉狭窄的分布及特点。方法:采用超高场强磁共振血管造影(3.0TMRA)测定186例CI患者颅内和颈部动脉,并与121例轻度头昏患者对照。结果:186例CI患者有动脉狭窄164例(88.17%)。狭窄动脉分布:①颅内动脉狭窄率为83.54%,颈部动脉狭窄率为51.83%。②前循环单一动脉狭窄60/164例(36.59%),其中颅内50例,颈部10例;后循环动脉狭窄38/164例(23.17%),其中颅内21例,颈部17例。③合并前、后循环颅内和颈部两条以上动脉狭窄66/164例(40.24%)。46～60岁组患者以前循环动脉狭窄为主(54.05%),其中主要为颅内大脑中动脉;>60岁组前循环动脉狭窄比例相对有所减少(30.08%),而后循环动脉狭窄(26.02%)和多发动脉狭窄(43.90%)明显增加(P<0.05)。结论:46～60岁CI患者动脉狭窄以前循环颅内动脉为主,>60岁CI患者后循环动脉狭窄和累及前后循环颅内和颈部动脉的多发动脉狭窄相对明显增加。
Objective: To investigate the distribution and characteristics of intracranial and cervical artery stenosis in patients with cerebral infarction (CI). Methods: The intracranial and cervical arteries of 186 patients with CI were measured by ultra high intensity magnetic resonance angiography (3.0TMRA) and compared with 121 patients with mild dizziness. Results: A total of 186 patients with CI had arterial stenosis in 164 cases (88.17%). Narrow artery distribution: ① rate of intracranial artery stenosis was 83.54%, stenosis of the neck artery was 51.83%. ② 60/164 cases (36.59%) had single anterior stenosis, of which 50 cases were intracranial and 10 cases were neck; 38/164 cases (23.17%) were posterior circulation arterial stenosis, of which 21 cases were intracranial and 17 cases were neck. ③ Before and after the merger, 66/164 cases (40.24%) had arterial stenosis with more than two intracranial and cervical parts. The prevalence of previous arterial stenosis was mainly in the group of 46-60 years old (54.05%), mainly in the intracranial middle cerebral artery. The percentage of anterior stenosis in the group of> 60 years old was decreased (30.08%), while the recurrent arterial stenosis (26.02 %) And multiple arterial stenosis (43.90%) were significantly increased (P <0.05). CONCLUSIONS: Artery stenosis in 46- to 60-year-old patients with prior arterial stenosis had predominantly recurrent intracranial arteries. Posterior circulation arterial stenosis and recurrent intracranial and cervical artery-related multiple arterial stenosis were associated with significant increases in> 60-year-old CI patients.